A mechanical shaft is a mechanical part, usually a cylindrical structure, used to transmit torque and rotational moment. Mechanical shafts are widely used in various mechanical equipment, such as printing machines, textile machines, packaging machines, manufacturing equipment, etc. Mechanical shafts can be divided into solid shafts, hollow shafts and flexible shafts.

A solid mechanical switch is a mechanical switch without a hollow, made of metal material. Compared with hollow shafts, solid mechanical shafts have higher strength and rigidity and can withstand greater torque and loads. Solid mechanical switches are usually cylindrical in shape, but can sometimes be hexagonal or otherwise non-circular. In the process of processing, the metal material needs to be turned, milled, and ground first to achieve the required size and shape. Then, according to actual use requirements, it may be necessary to perform heat treatment, surface treatment and other processing techniques on the mechanical shaft to improve its strength and wear resistance.

The hollow mechanical shaft is a hollow mechanical shaft. Unlike the solid mechanical shaft, the hollow part inside the hollow mechanical shaft can be used to guide fluids such as coolant or gas to achieve cooling or other special functions. Hollow mechanical shafts are usually used in high-speed rotating mechanical equipment, such as aviation, aerospace, automobile manufacturing and other fields.

A flexible mechanical shaft is a special type of mechanical shaft consisting of multiple sheets or wires that can be bent and twisted to transmit power and motion between different positions. Flexible mechanical shafts are usually used in mechanical equipment that needs to transmit torque and rotational torque over long distances, such as textile machines, printing machines, etc.

As an indispensable part of mechanical equipment, mechanical shaft has important functions and significance. They undertake important tasks such as transmitting power, supporting and rotating mechanical equipment. Therefore, the quality and precision of mechanical shafts have a significant impact on the normal operation and performance of mechanical equipment. When manufacturing mechanical shafts, it is necessary to strictly abide by the processing technology requirements and use high-quality materials and equipment to ensure that the manufactured mechanical shafts meet various application requirements.